64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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//
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// Copyright (c) 2006 Georgia Tech Research Corporation
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation;
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Author: George F. Riley<riley@ece.gatech.edu>
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//
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// NS3 - Protocol base class
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// George F. Riley. Georgia Tech, Spring 2007
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// Class protocol is for any protocol stack layer implementation
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#include <stdint.h>
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#ifndef __PROTOCOL_H__
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#define __PROTOCOL_H__
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namespace ns3{
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typedef int Layer_t; // Protocol layer number
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typedef int Proto_t; // Protocol identifier
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typedef int Version_t; // Which version of protocol
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typedef int Priority_t; // Protocol priority
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typedef int32_t PortId_t;
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#define NO_PORT ((PortId_t)-1)
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typedef uint32_t Size_t;
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// All Protocol subclasses must implement the Layer, Proto, and
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// Version methods, although they are free to indicate that the
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// particular value if meaningless by returning -1. For example,
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// most layer 2 protocols do not include a "version number", nor
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// a "protocol number". The Proto values must be used
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// if the protocol is to be inserted into the protocol graph.
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//
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// Additionally, all protocols must be able to copy themselves, using
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// the virtual Copy method. THis is used when copying protocol graphs
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// when creating Node objects from a pre-configured node. See the
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// code in Node::Create() and Node::Prototype() in the node implementation.
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class Protocol {
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public:
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Protocol() { }
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virtual ~Protocol() { }
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virtual Layer_t GetLayer() const = 0; // Get protocol layer
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virtual Proto_t GetProtocolNumber() const = 0; // Get proto number
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virtual Version_t GetVersion() const = 0; // Get proto version number
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virtual Protocol* Copy() const = 0; // Copy this protocol
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};
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} //namespace ns3
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#endif
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